I am interested in patterns of marine biodiversity and macroecology, and in particular the effects of human impacts such as fishing and limate change on these patterns. I combine theoretical, empirical, and field studies and work on environments including coral reefs, the open ocean, and the deep sea.

Current projects include quantifying range changes in large pelagic predators, predicting the global distribution of cold-water corals, assessing the impacts of sampling on estimates of endemism, and examining differences in the macroecology of marine and terrestrial environments.